Thursday, February 27, 2020

WBCS Polity and Constitution MCQs Prelims and Mains

biology mcq For UPSC | SSC | Rail | RRB | State PSC | class 10 P33

Biology 33

161. Monocotyledonous plants show which of the following feature?
(A) Flowers are trimerous
(B) Perennial growth
(C) Leaf shows reticulate venation
(D) Tap root system

Correct Answer: [A] Flowers are trimerous.
162. The total mass of all the organisms of given type and/or in a given area is called
(A) Biomarker
(B) Biosensor
(C) Biome
(D) Biomass

Correct Answer: [D] Biomass.
163. Kranz anatomy states that the plant has
(A) C2 cycle
(B) C3 cycle
(C) C4 cycle
(D) Both C3 and C4 cycle

Correct Answer: [C] C4 cycle.
164. Name one rootless plant.
(A) Monochoria
(B) Pistia
(C) Ceratophyllum
(D) Eichhornia

Correct Answer: [B] Pistia.
165. The portion of the carapace which covers the gill of prawn is known as
(A) Branchiostegite
(B) Branchiostegal spine
(C) Bronchus
(D) Branchiostegal membrane

Correct Answer: [D] Branchiostegal membrane.


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